Finding the Fourth Proportional to 108,736.82, 162,436.82 and 78,492.66

Step by Step Solution

1. Step 1: Write the proportion equation
   108,736.82 : 162,436.82 = 78,492.66 : x
2. Step 2: Convert to fraction form
   108,736.82/162,436.82 = 78,492.66/x
3. Step 3: Cross multiply
   108,736.82x = 162,436.82 × 78,492.66
4. Step 4: Simplify right side
   108,736.82x = 12,750,098,083.74
5. Step 5: Solve for x
   x = 12,750,098,083.74/108,736.82
6. Step 6: Final answer
   x = 117,256.49